Statistics open from Assigned: pick a task and you get the picture for a class and for each student — the share answered with no errors, the share answered with errors, the total number of items, and the words that went wrong most often.

The percentages describe what the student actually attempted, not the whole task. Someone who answered one item out of fifty and got it right shows as 100% with no errors. Always read the percentage together with the progress figure next to it; on its own it says nothing about how much was done.

Completed in the list means the progress reached 100%, which is not quite the same as the student pressing through to the end of the task.

The progress circle beside a student’s or a class’s name is an average over their currently open tasks only. Finished and expired tasks drop out of it, so the number moves as tasks close — it is a snapshot of the current load, not a lifetime score.

On the task itself, average time and common errors compare the current version of the task with the previous one, and average time counts only the runs that were finished.

Two things to keep in mind when you interpret errors. A skipped answer is recorded as an error, indistinguishable from a wrong one. And you cannot open a student’s individual answers — the detailed run, item by item, is visible to the student and not to you; what reaches you is the counts and the list of problem words.